Support disabling external file access

5 files changed, 15 insertions, 2 deletions

diff --git a/lib/docx/docx-reader.js b/lib/docx/docx-reader.js
index 342ec46..f343dae 100644
--- a/lib/docx/docx-reader.js
+++ b/lib/docx/docx-reader.js
@@ -18,10 +18,12 @@ var commentsReader = require("./comments-reader");
 var Files = require("./files").Files;
 
 
-function read(docxFile, input) {
+function read(docxFile, input, options) {
     input = input || {};
+    options = options || {};
 
     var files = new Files({
+        externalFileAccess: options.externalFileAccess,
         relativeToFile: input.path
     });
 
diff --git a/lib/docx/files.js b/lib/docx/files.js
index 4b09b69..cb8655c 100644
--- a/lib/docx/files.js
+++ b/lib/docx/files.js
@@ -13,6 +13,15 @@ exports.uriToPath = uriToPath;
 
 
 function Files(options) {
+    options = options || {};
+    if (!options.externalFileAccess) {
+        return {
+            read: function(uri) {
+                return promises.reject(new Error("could not read external image '" + uri + "', external file access is disabled"));
+            }
+        };
+    }
+
     var base = options.relativeToFile ? dirname(options.relativeToFile) : null;
 
     function read(uri, encoding) {
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 465c8f9..1f9af9e 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -33,6 +33,7 @@ interface Options {
     convertImage?: ImageConverter;
     ignoreEmptyParagraphs?: boolean;
     idPrefix?: string;
+    externalFileAccess?: boolean;
     transformDocument?: (element: any) => any;
 }
 
diff --git a/lib/index.js b/lib/index.js
index 03302c2..48dfb91 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -39,7 +39,7 @@ function convert(input, options) {
             });
         })
         .then(function(docxFile) {
-            return docxReader.read(docxFile, input)
+            return docxReader.read(docxFile, input, options)
                 .then(function(documentResult) {
                     return documentResult.map(options.transformDocument);
                 })
diff --git a/lib/options-reader.js b/lib/options-reader.js
index e16e472..4768159 100644
--- a/lib/options-reader.js
+++ b/lib/options-reader.js
@@ -63,6 +63,7 @@ var defaultStyleMap = exports._defaultStyleMap = [
 ];
 
 var standardOptions = exports._standardOptions = {
+    externalFileAccess: true,
     transformDocument: identity,
     includeDefaultStyleMap: true,
     includeEmbeddedStyleMap: true